Airbag control unit with part number 28556-6KG0A

What does the airbag control unit 28556-6KG0A do?

The airbag control unit 28556-6KG0A is the central unit of the restraint system (SRS) of Nissan. It evaluates the signals from the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered. After an accident it stores crash data and locks itself.

In this way the unit controls the entire triggering. It also monitors the system continuously and shows faults via the airbag warning light.

Why does the control unit 28556-6KG0A fail?

With the 28556-6KG0A, stored crash data after an accident is the most common cause, even if no airbag has been triggered. Further causes are essentially component ageing, connection problems and voltage spikes.

Crash data cannot be removed with a normal diagnostic tool. Airbag24 removes it during the repair.

The following causes are possible in detail:

• ageing electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the 28556-6KG0A is defective?

The airbag warning light in the instrument cluster indicates a fault with the 28556-6KG0A when it lights up permanently or intermittently. Accompanying this are a fault message in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared.

In such a state airbags and seatbelt pretensioners may possibly not trigger in an emergency.

So have the system checked promptly, even if the vehicle runs normally in everyday use.

Which vehicles is the 28556-6KG0A fitted in?

The airbag control unit 28556-6KG0A is fitted in these vehicles: Nissan Frontier D23 (2015-2020); Nissan Navara D23 (2015-2020).

The following overview lists the vehicles for this part number:

• Nissan Frontier D23 (2015-2020)
• Nissan Navara D23 (2015-2020)

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Whether the control unit itself is defective, or whether a plug or cable is the cause, is shown only by the fault memory that you had read out beforehand.

For the same vehicles, we also repair control units with the part numbers 0 285 015 304, 28556-8Z325, 285569Z510, 28556EA10A, 98820 6KB0A, 98820 EB01D.

How does the repair of the 28556-6KG0A work?

First have the fault memory read out and attach the log. Then disconnect the battery, remove the 28556-6KG0A and create a repair order online. Airbag24 handles checking, repairing, erasing the crash data and testing the unit before it goes back.

Pack the unit well and send it in. Airbag24 checks it on the test bench, replaces defective components, erases the stored crash data and carries out a functional test.

Processing usually takes 3–4 working days. This period applies only to checking, repairing and testing.

Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 28556-6KG0A get to Airbag24?

You send the 28556-6KG0A as a parcel, or have it collected by UPS for an extra charge. The return after the repair is also made by UPS.

The printed repair order goes into the parcel. Pack the control unit shockproof.